Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Analysis of fuel in surface heat exchangers for aircraft
Submission Author:
Edemar Morsch Filho , SP
Co-Authors:
Henrique Carreira Martins, Edemar Morsch Filho, Laio Oriel Seman
Presenter: Edemar Morsch Filho
doi://10.26678/ABCM.COBEM2023.COB2023-1425
Abstract
This study simulates the thermal management of modern commercial aircraft using integrated fuel and surface heat exchangers. Conventional thermal management in aircraft generally directs atmospheric air to its interior, promoting a drag increase. As a significant part of the fuel of a civil commercial aviation aircraft is in the wing, which in turn has a relatively large surface area, is exposed to airflow with speeds greater than 800 km/h and at a temperature of -56 °C, there is a huge potential to exchange heat using the wing and the circulation of fuel inside it, as in a surface heat exchanger. In this case, the fuel can be used to absorb and transport the heat loads from the systems before being rejected. To evaluate it, a lumped numerical model is developed considering typical operation phases. Despite the model adopting simplifying provisions regarding the flow and imposed geometry, the results allow exploring different scenarios that may be useful for the preliminary design of an aircraft. The model developed in this study suggests that the surface heat exchanger model integrated with the fuel is a promising technique when certain altitude and fuel flow characteristics are met.
Keywords
Heat transfer, Airplane, fuel, Heat exchanger
